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Order no.: 0101640

SPX-21M

Order no.: 0101640

SPX-21M

Hi-fi full range speaker, 12 W, 4 Ω Excellent sound quality Inverse laminated cone and ventilated centering spider Neodymium magnet system Voice coil system of very low moving mass Application in small speakers or satellite systems Ideally suited for line arrays, column speakers Combined with bass-midrange speakers, very well-suited as a tweeter system with a low crossover frequency

About

Hi-fi full range speaker, 12 W, 4 Ω
  • Excellent sound quality
  • Inverse laminated cone and ventilated centering spider
  • Neodymium magnet system
  • Voice coil system of very low moving mass
  • Application in small speakers or satellite systems
  • Ideally suited for line arrays, column speakers
  • Combined with bass-midrange speakers, very well-suited as a tweeter system with a low crossover frequency

Specifications

Impedance (Z) 4 Ω
Frequency range f3-22,000 Hz
Resonant frequency (fs) 170 Hz
Power rating (RMS) 12 W
Peak music power output (MAX) 25 W
SPL 84 dB/W/m
Suspension compl. (Cms) 0.6 mm/N
Moving mass (Mms) 1.45 g
Mech. Q factor (Qms) 4.66
Electr. Q factor (Qes) 0.53
Total Q factor (Qts) 0.47
Equivalent volume (Vas) 0.1 l
DC resistance (Re) 3.74 Ω
Force factor (BxL) 3.32 Tm
Voice coil induct. (Le) 0.12 mH
Voice coil diameter Ø 20 mm
Voice coil former Kapton
Linear excursion (XMAX) ± 1.2 mm
Eff. cone area (Sd) 13 cm2
Magnet weight 25.8 g
Magnet diameter Ø 29 mm
Mounting cutout Ø 50.5 mm
Mounting depth 33.4 mm
Hole spacing X-axis 45 mm
Hole spacing Y-axis 45 mm
Dimensions 55.5 x 55.5 x 34 mm
Width 55.5 mm
Height 55.5 mm
Depth 34 mm
Colour black
Admiss. ambient temp. 0-40 °C
Weight 0.09 kg
Packing unit 1
Type of speaker 2"
Packing dimensions (W x H x L) 0.06 x 0.045 x 0.06 m
Gross weight 0.098 kg
Net weight 0.087 kg

Accessories for SPX-21M

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